People · Malaysia
Koo Jian Hong
Pyraminx · top 12.0% of 129,321 all-time · competing since June 2010 · 2010HONG05
Koo Jian Hong has been competing for 16 years. His best event is the Pyraminx: a personal-best single of 4.81, set at Forest City Open 2017, puts him in the top 12.0% of the 129,321 people who have ever been ranked in the event, and 228th in Malaysia. Across 4 competitions since June 2010, he has put 80 official solves on the record across six events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 7 counted rounds. His 3×3 best has come down from 18.68 in June 2010 to 12.37, a 34% improvement. Koo has entered four competitions, more competitions than 78% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Malaysia | |
|---|---|---|---|---|---|
| Pyraminx | 4.81 | 5.75 | top 12.0% | 228 / 1,723 | |
| 3×3 | 12.37 | 14.98 | top 15.2% | 820 / 3,773 | |
| 4×4 | 53.08 | 59.97 | top 28.4% | 458 / 1,219 | |
| 2×2 | 4.30 | 4.95 | top 30.3% | 930 / 2,541 | |
| Megaminx | 1:42.03 | 1:46.67 | top 35.8% | 232 / 518 | |
| Square-1 | 29.06 | 35.10 | top 47.6% | 202 / 364 |
Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.
The line so far
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 11 Feb 2017Three personal bests in one day at Forest City Open 2017.
- 31 Jul 2016First sub-15 3×3: 12.48 at Johor Open 2016.
- 5 Jun 2010First competition: Johor Rubik's Cube Open 2010. A 19.46 3×3 single to start from.
Competitions
- Forest City Open 2017 · 11 Feb 2017 — 3 personal bests set
- Johor Open 2016 · 31 Jul 2016 — 2 personal bests set
- Johor Rubik's Cube Open 2012 · 2 Sep 2012
- Johor Rubik's Cube Open 2010 · 5 Jun 2010 — 1 personal best set
Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.
The circuit
The people whose scorecards keep turning up next to his.
- Wong Chong Wen (黄崇文) — met in 13 rounds, finished ahead twice
- Choo Kian Yong — met in 12 rounds, finished ahead 11 times
- Ivan Lew Yi Wen (刘义文) — met in 12 rounds, finished ahead twice
Next targets
- A sub-4 Pyraminx single — 9,892 people have one; it is 0.81 away.
- A sub-12 3×3 single — 39,535 people have one; it is 0.37 away.
Targets move as he improves.